An unpredicable moment to when you don't expect anything to happen near anyone that has an intense anger problem. You find yourself pwned, injured, and a massive headache with zero warning.

Guy 1: dude... why am i on the ground and why does my head hurt so bad? Guy with anger issues: I'm so sorry man. I just thought you were the IRS. Guy 2: Dude. Thats some Oblivious Rage he had there. Hey dude you dropped your teeth.